Organic compounds -- part of the class 532-570 series – Organic compounds – Cyclopentanohydrophenanthrene ring system containing
Patent
1995-06-02
1996-10-15
Prior, Kimberly J.
Organic compounds -- part of the class 532-570 series
Organic compounds
Cyclopentanohydrophenanthrene ring system containing
C07J 7500, C07J 4100
Patent
active
055655874
ABSTRACT:
A process is described for the preparation of taurocholanic acids of formula (I): ##STR1## in which A completes the 5.beta.-cyclopentaneperhydrophenanthrene structure of a cholanic acid and E is hydrogen or a methyl group, by reacting the corresponding cholanic acid with the chloride of an acid having a tertiary carbon in the alpha-position, and treating the resulting mixed anhydride with taurine.
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J. Falbe, "Methoden der Organischen Chemie . . . ", 1985, Georg Thieme Verlag, Stuttgart, Germany, pp. 635-636 and 978-981. (no translation)
Arosio Roberto
Rossetti Vittorio
Prior Kimberly J.
Sanofi
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